Piaget's theory of intellectual development : an introduction /
Herbert Ginsburg, Sylvia Opper
- Englewood Cliffs, N.J. : Prentice-Hall, 1969
- xi, 237 p. ; 24 cm.
- The Prentice-Hall series in developmental psychology .
013493017X
Piaget, Jean, 1896-1980.
Cognition in children. Education-- Philosophy. Intellect.